/*
    JSON.js

        parseJSON(string)

        toJSONString(any) 

*/

function parseJSON(str) {
    if(navigator.userAgent.indexOf("Safari")!=-1){
        return eval('(' + str + ')');
    }
    try {
        return !(/[^,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]/.test(str.replace(/"(\\.|[^"\\])*"/g, ''))) && eval('(' + str + ')');
    //"
    } catch (e) {
        return false;
    }
    
}; 

function toJSONString(target) {
    var m = {
            '\b': '\\b',
            '\t': '\\t',
            '\n': '\\n',
            '\f': '\\f',
            '\r': '\\r',
            '"' : '\\"',
            '\\': '\\\\'
    };
    s = {
        array: function (x) {
            var a = ['['], b, f, i, l = x.length, v;
            for (i = 0; i < l; i += 1) {
                v = x[i];
                f = s[typeof v];
                if (f) {
                    v = f(v);
                    if (typeof v == 'string') {
                        if (b) {
                            a[a.length] = ',';
                        }
                        a[a.length] = v;
                        b = true;
                    }
                }
            }
            a[a.length] = ']';
            return a.join('');
        },
        'boolean': function (x) {
            return String(x);
        },
        'null': function (x) {
            return "null";
        },
        number: function (x) {
            return isFinite(x) ? String(x) : 'null';
        },
        object: function (x) {
            if (x) {
                if (x instanceof Array) {
                    return s.array(x);
                }
                var a = ['{'], b, f, i, v;
                for (i in x) {
                    v = x[i];
                    f = s[typeof v];
                    if (f) {
                        v = f(v);
                        if (typeof v == 'string') {
                            if (b) {
                                a[a.length] = ',';
                            }
                            a.push(s.string(i), ':', v);
                            b = true;
                        }
                    }
                }
                a[a.length] = '}';
                return a.join('');
            }
            return 'null';
        },
        string: function (x) {
            if (/["\\\x00-\x1f]/.test(x)) {
                x = x.replace(/([\x00-\x1f\\"])/g, function(a, b) {
                    var c = m[b];
                    if (c) {
                        return c;
                    }
                    c = b.charCodeAt();
                    return '\\u00' +
                        Math.floor(c / 16).toString(16) +
                        (c % 16).toString(16);
                });
            }
            return '"' + x + '"';
        }
    };
    var type = typeof target;
    return s[type](target);
}